I grew up where there were a bunch of Russian wild boars roaming the hills. With the right tools they go from nightmare to great table-fare. There is a reason that wild boars were domesticated at least three separate times. If you think about it, pigs are the only major farm animals we bother to keep exclusively for meat; they don't provide eggs, milk, wool, or pull anything. Plus they are not the safest animals to work with and become feral easily. We've decided all of that is worth it though.
I'm not arguing we don't use all of the body parts. Indeed, pigs might be the best utilized farm animal in products for human consumption. I mean can you imagine beef rinds?! I'm guessing they'd be... Leathery.